Having recently upgraded to an Android tablet, I mostly use YouVersion's Bible app. Before that, I primarily used e-Sword and NET Bible on a Fujitsu tablet PC. I've actually been fully electronic since 2002 or 2003, when I got a Pocket PC device. As I told a friend at the time, "I just got an eight-translation parallel Bible with Greek and Hebrew lexicons, and it only weighs 5 ounces!"